Racket 7.3

#1

Post by jessealama » Thu, May 16, 2019, 3:09 AM UTC

Racket 7.3
download.racket-lang.org

Re: Racket 7.3

#2

Post by nerdponx » Thu, May 16, 2019, 5:57 AM UTC

And yet I'm still too stupid to understand the macro system. Oh well.

I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Re: Racket 7.3

#3

Post by swdunlop » Thu, May 16, 2019, 6:13 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

See http://blog.racket-lang.org/2019/01/racket-on-chez-status.ht... and scroll down to “Performance of Compiled Code.” That was back in January, so things may be even better now.

Re: Racket 7.3

#4

Post by jim-jim-jim » Thu, May 16, 2019, 6:31 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Is it the general Scheme syntax-rules macros that you're struggling with? Or something unique to Racket? (which I haven't used)

If it's the former, I found this little article helpful when I was new to Scheme:

http://www.willdonnelly.net/blog/scheme-syntax-rules/

Re: Racket 7.3

#5

Post by pjmlp » Thu, May 16, 2019, 6:34 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Getting rid of C dependency and bootstrap Racket in Scheme.

Re: Racket 7.3

#6

Post by darkpuma » Thu, May 16, 2019, 7:11 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Try out this guide perhaps: http://www.greghendershott.com/fear-of-macros/

Re: Racket 7.3

#7

Post by [deleted] » Thu, May 16, 2019, 7:16 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

[deleted]

Re: Racket 7.3

#8

Post by [deleted] » Thu, May 16, 2019, 7:35 AM UTC

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

[deleted]

Re: Racket 7.3

#9

Post by tgbugs » Thu, May 16, 2019, 7:41 AM UTC

jim-jim-jim wrote: post #4

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Is it the general Scheme syntax-rules macros that you're struggling with? Or something unique to Racket? (which I haven't used) If it's the former, I found this little article helpful when I was new to Scheme: http://www.willdonnelly.net/blog/scheme-syntax-rules/

For Racket specific macro tooling syntax-parse [0] in combination with syntax classes is usually the suggested starting point. Hygenic with pattern matching and a bunch of other features for parsing s-expression grammars. As mentioned down-thread Greg Hendershott's Fear of Macros [1] is a good starting point for a number of folks. The curriculum for Racket School 2018 [2] also has exercises that help introduce the syntax-parse tooling.

0. https://docs.racket-lang.org/syntax/Parsing_Syntax.html 1. https://www.greghendershott.com/fear-of-macros/ 2. https://summer-school.racket-lang.org/2018/plan/

Re: Racket 7.3

#10

Post by xabush » Thu, May 16, 2019, 7:52 AM UTC

jim-jim-jim wrote: post #4

nerdponx wrote: post #2

And yet I'm still too stupid to understand the macro system. Oh well. I also didn't know there was a Chez version. Racket already has a native AOT compiler, right? What would the advantage be to run on Chez, faster or smaller compiled code?

Is it the general Scheme syntax-rules macros that you're struggling with? Or something unique to Racket? (which I haven't used) If it's the former, I found this little article helpful when I was new to Scheme: http://www.willdonnelly.net/blog/scheme-syntax-rules/

This is great tutorial. I used to be confused by the macros in scheme